1. The Organization shall be open and inclusive for membership of all States and regional integration organizations.

2. States having signed or endorsed the Joint Statement on the Future Establishment of the International Organization for Mediation shall be entitled to be Founding Members if they have consented to be bound by this Convention within five years after the entry into force of this Convention.

3. Other States shall be entitled to be Founding Members if they have consented to be bound by this Convention within two years after the entry into force of this Convention.